Battyboutit I'm a little worried about you just starting out and only eating 1000 cals! I eat very close to 1200-never much over that and I'm losing 4-5 lbs a week but I'm able to walk most days too. That is all the excercise I do lol. Now SparkPeople recommends 1200-1550 cals a day for me and I never try to eat 1550 cause I want to lose a little more quickly so believe me I understand wanting to eat fewer cals to speed up the loss but at 1000 you're more likely to end up in a feeding frenzy lol when you are so hungry you wanna eat your own hand off
Good luck to you! Congrats on your loss this far!